I use an MXL 990/991 and a Line 6 Toneport Ux2 for recording and when i record acoustic it sounds a tad too thin. I am putting the 991 at the 12th fret and the 990 near the bridge. Can anyone give me some tips?

EDIT: i am looking for the Bright Eyes - First Day of My Life kinda tone. I love that guitar tone
My Gear:
Fender American Deluxe Stratocaster
Epiphone Sheraton II
Fender Blues Deluxe Reissue
Teese RMC Picture Wah
MXR Carbon Copy
Keeley Modded TS9
Korg Pitchblack
Schecter Omen 6
Dean Performer Acoustic